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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
that are missing
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that are missing" is correct and usable in written English.
It can be used to refer to items, elements, or information that are absent or not present in a given context. Example: "We need to identify the components that are missing from the final report before submission."
✓ Grammatically correct
Academia
News & Media
Science
Wiki
Alternative expressions(20)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
It's about 15% that are missing.
News & Media
"There's kids that are missing right now.
News & Media
It's not just businesses that are missing out.
News & Media
It is not only words that are missing.
News & Media
Some bare nails suggest squares that are missing or invisible.
News & Media
There are friends and co-workers that are missing.
News & Media
Enter the new directory and run dpkg-checkbuilddeps, and install any dependencies that are missing.
The problems that are missing from this problem set, they have now done.
Academia
This contains the first two scenes that are missing from all available DVDs.
Academia
Identify potential clefs for fragmentary Renaissance and Medieval pieces that are missing their clefs.
I miss what I already have, and I surround myself with things that are missing".
News & Media
Expert writing Tips
Best practice
Always ensure the verb 'are' agrees with a plural antecedent. For example, use 'that are missing' when referring to 'pieces', 'data points' or 'individuals'.
Common error
Do not use 'that are missing' with a singular subject. If you are referring to a single item, such as a 'file' or a 'person', the correct form is 'that is missing'.
Source & Trust
85%
Authority and reliability
4.9/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that are missing" functions as a relative clause used to modify a plural noun. It identifies a specific subset of items by their absence. According to Ludwig, it is frequently used to provide essential detail about what is not present in a given set.
Frequent in
News & Media
45%
Science
25%
Wiki
20%
Less common in
Academia
7%
Formal & Business
2%
Social Media
1%
Ludwig's WRAP-UP
The phrase "that are missing" is a highly versatile and grammatically correct relative clause used to describe the absence of plural items. Ludwig AI confirms that it is an essential tool for writers across disciplines, appearing frequently in everything from breaking news reports about missing persons to scientific papers discussing gaps in genomic data. It is most effective when it follows a clear plural antecedent and can be interchanged with "that are absent" for a more formal tone or "that are unaccounted for" when a sense of mystery or financial discrepancy is implied. Overall, it is a standard, reliable expression in modern English.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that are absent
Provides a slightly more formal tone often used in technical or academic descriptions.
which are not present
A literal and neutral description of absence.
which are lacking
Suggests a deficiency or a need for the items rather than just their absence.
that are unaccounted for
Commonly used in the context of people, money or inventory where the exact location is unknown.
which are omitted
Implies that the items were intentionally or accidentally left out of a list or set.
that are gone
A more informal and direct way to describe something that was once there but is no longer.
that are unavailable
Often used in logistics or commerce to indicate items cannot be accessed currently.
that are misplaced
Suggests the items exist but are in the wrong location.
that are short
Usually refers to quantities or measurements that do not meet a required threshold.
that are needed
Focuses on the requirement for the items rather than the state of their absence.
FAQs
What is the difference between "that are missing" and "which are missing"?
In American English, "that are missing" is typically used for restrictive clauses that define the noun, while "which are missing" is used for non-restrictive clauses that add extra information (usually set off by commas).
Can I use "that are missing" in a formal report?
Yes, it is perfectly acceptable. However, in very formal scientific contexts, you might consider "that are absent" or "not present" as precise alternatives.
When should I use "that is missing" instead?
You should use "that is missing" when the noun it refers to is singular, such as "the document that is missing".
What is a synonym for "that are missing" in a business context?
Depending on the situation, you could use "that are outstanding" for tasks or "that are unaccounted for" for physical inventory.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.9/5
Expert rating
Real-world application tested